SOLUTION: e^-x=3

Question 269924: e^-x=3
Found 2 solutions by drk, ankor@dixie-net.com:
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
Step 1 - take a LN of both sides to get

the ln and e cancel so we get

divide by -1 to get

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
e^-x = 3
ln(e^-x) = ln(3)
-x*ln(e) = 1.0986
:
ln of e is 1, therefore
-x = 1.0986
x = -1.0986
:
:
Check on a calc: enter e^(-(-1.0986))= 2.9999 ~ 3
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